Apply parsimony to your own communication
Use the fewest words and concepts that carry the full meaning — not as brevity, but as clarity.
Why it works
Communication complexity imposes cognitive load on the listener, which reduces accurate reception and increases misinterpretation. Cutting unnecessary qualifications, jargon, and nested structure reduces the gap between what you intend and what lands — the same principle applied to transmitting ideas rather than evaluating explanations.
How to do it
- After drafting a message, ask: which sentence is doing the most work? Can the others be cut?
- Remove modifiers that do not change the meaning (very, extremely, basically, essentially).
- Replace jargon with a plain term unless the jargon carries a precision the plain term cannot.
- Test by reading aloud: anything that makes you stumble is probably unnecessary.
Evidence
Cognitive load research shows that processing difficulty reduces comprehension and recall. Reducing extraneous complexity in communication is a practical implication of cognitive load theory, which is well supported. (observational)
Brevity can sacrifice necessary nuance; the goal is removing what is not needed, not compressing past the information the message actually requires.
Sources
- Sweller (1988), cognitive load theory, Cognitive Science
Common mistake
Confusing length with thoroughness — adding caveats and qualifications that communicate anxiety rather than precision.
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More practices for Occam’s Razor: Prefer the Simpler Explanation
- Count the assumptions each explanation requires
When two explanations fit the facts, count how many unverified assumptions each one rests on.
- Resist conspiracy escalation
When your explanation requires others to have coordinated secretly, apply the razor hard.
- Diagnose before elaborating
Check the common, simple explanation first before searching for rare or complex ones.
- Trim model complexity
Prefer the simplest model of a situation that still fits all the evidence.
- Know when not to apply the razor
Occam’s Razor is a tiebreaker, not a rule: when evidence clearly supports complexity, go there.
- Resist the single-cause trap
Simple doesn’t always mean one cause — sometimes the simplest honest answer is 'multiple contributing factors.'
Related concepts
- Hanlon's Razor: Never Attribute to Malice What Stupidity Can Explain
The charitable-attribution heuristic and why it usually serves you better
- Thinking, Fast and Slow, Made Usable
Two systems, the biases they create, and when to slow down
- First-Principles Thinking, Made Usable
Reasoning up from fundamentals, with the mechanism behind why it beats analogy
- Anchoring Bias in Negotiation and Judgment
Why the first number wins — the mechanism, and how to set and resist anchors